Wire-clamp.



{ No. 858,952. 'PATENTED JULY 2, 1907.

G. L. CARTER.

WIRE CLAMP.

APPLIOATIO]! IILED APR. 21. 1906.

ix um I] IIIIIIIIIIIIIIL aAwau m if I l l l i l 1 i l i i E GEORGE L.CARTER, OF YELLOW SPRINGS OHIO.

WIRE-CLAMP.

Specification of Letters Patent.

Patented July 2, 1907.

Application filed A ril 21, 1906. Serial No- 313,002.

To all 'whom "it may concern:

Be it known that I, GEORGE L. CARTER, a citizen of the United States,residing at Yellow Springs, in the county of Greene and State of Ohio,have invented new and useful Improvements in Wire-Clamps, of which thefollowing is a specification.

This invention relates to wire clamps for insulators and the like, theobject of the invention being to provide a simple device for securelyclamping and holding wires upon insulators, whereby valuable time. issaved in fastening and unfastening telegraph, telephone and electricWires.

With the above and other objects in view, the nature of which will morefully appear as the description proceeds, the invention consists in thenovel construction, combination and arrangement of parts hereinaftermore fully described, illustrated and claimed.

In the accompanying drawings, Figure 1 is a perspective view of aninsulator with the wire clamp ap plied thereto. Fig. 2 is a verticalsectional view of the same. Fig. 3 is a sectional elevation thereoftaken 'at right angles to Fig. 2. Fig, 4 is a plan view of the same withthe clamp members omitted.

Referring to the drawings, 1 designates the body of the insulator shownprovided with the usual threaded socket 2 adapting the same to besecured to the crossarm of a pole or any other suitable support.

In carrying out the present invention, the body of the insulator isprovided around its outer side with an annular groove 3 in which isreceived a collar 4 which is split at one side, as shown at 5, andprovided with parallel ears 6 through which passes a clamping device 7in the form of a bolt or screw or its equivalent, whereby the splitcollar as a whole is clamped securely around the body of the insulator.Under the pro ferrcd embodiment of this invention, the depth of thegroove 3 is equal to the thickness of the collar 4 so that saidcollarlies flush with the outer surface of the insulator, as clearly indicatedin Figs. 1 and 3.

The body of the insulator is also rabbeted or recessed, as shown at 8,from the groove 3 upward to receive lugs 9 extending upward from thesplit collar 4, which lugs are provided with notches 1.0 of severalsizes to receive wires of corresponding variation in size, such wiresbeing shown at 11 in Fig. 2 as being of different sizes. The top of theinsulator body is also provided with a diametrical recess 12 throughwhich the wire or wires extend and the opposite Walls of said recess arenotched, as shown at 13 and 14, and for a purpose which will hereinafterappear. The

split collar 4, together with the notched lugs 9 thereof, constitutesthe stationary member of the clamp.

The movable clamp member embodies a head or open center frame 15 havingan elbow extension 16 at one side thereof which is pivotally connectedat 17 to a lug 18 on the collar 4, as clearly shown in Figs. 1 and 2.Extending from the opposite side of the head or frame 15 is alever arm19 provided with notches 20-to be engaged by a latch 21 which ispivotally connected to the split collar 4 at the point 22. Extendingdownward from the bottom of the head 15 are lugs 23 provided withnotches 24 of different sizes to engage the wire or wires seated in thenotches 10 of the split collar. When the movable clamp member is in itsclamped position, as shown in Figs. 1, 2 and 3, the opposite side edgesof the lugs 23 are received in the notches 13 and 14 at the top of theinsulator and at opposite sides of the recess 12, thus preventinglateral movement of the movable clamp member when in its clampingposition, and thereby removing strain from the pivot 17 by which themovable clamp member is connected to the stationary clamp member and tothe insulator body. It will also be observed that the lugs 23 arelocated at a considerable distance from and between the lugs. 9 so as topartially crimp the wire or wires engaged between and held by the clampmembers, thus reducing the liability of the wire or wires to slipbetween the clamp members. The lever arm 19 enables the requiredpressure to be brought to bear on the wire or wires to partially crimpthe same and when said lever has been brought to the desired position,it is securely held by means of the latch 21 which engages with any oneof the notches 20 in said lever arm. 1

It will be understood that the wire or wires are first passed throughbetween the clamp members and stretched to the required degree beforethe latch 21 is engaged with the notches 20 in the lever arm 19.

I claim:

1. The combination with an insulator, of a wire clamp mounted thereonand embodying a stationary member in the form of a split collarembracing the insulator and a movable member connected to the stationarymember and embodying a lever arm, means for fastening said lever arm,and overlapping notched lugs on the stationary and movable members ofthe clamp which are adapted to eu gage and crimp the wire, substantiallyas described.

2. The combination with an insulator, of a wire clamp mounted thereonand embodying a stationary member in the form of a split collarembracing the insulator, and a movable member pivotally connected to thestationary member and provided with a lever arm, a fastening device forengaging and holding the lever arm, the clamp members being eachprovided with oppositely arranged lugs having notches to receive thewire, said lugs being located at a distance from each other to providefor crimping the wire, substantially as and for the purpose described.

3. The combination with an insulator having a wirereeeiving recesstherein and provided with notches at one or both sides of said recess,of a wire clamp embodying a stationary member secured to the insulator,a. movable member mounted on the stationary member, means for securingthe members together, and lugs on the movable member receivable in saidnotches in the insulator, substantially as and for the purposedescribed.

In testimony whereof, I aflix my signature in presence of two witnesses.

GEORGE L. CARTER.

Witnesses WM. H. ESTLE, AARON H. ELLIS.

